A dust cleaning device of a completely off-line ash cleaning type

Abstract

The application relates to the dust removal technical field and discloses a completely offline dust cleaning type dust removal equipment, which comprises a box body, a dust hopper, a cage and a cloth bag. The dust hopper is communicated with the bottom of the box body, the cage is installed in the inside of the box body, the cloth bag is arranged outside the cage, the dust hopper is communicated with an air inlet pipe, and the dust removal equipment further comprises a spraying mechanism, an exhaust assembly, an opening and closing piece and a mechanical cleaning mechanism. The spraying mechanism is used for spraying and cleaning the cloth bag, the exhaust assembly is used for discharging clean air, the opening and closing piece is used for opening and closing the exhaust assembly and the box body, and the mechanical cleaning mechanism is used for cleaning the outside of the cloth bag. The mechanical cleaning mechanism comprises a cleaning shaft and a cleaning rod. The cleaning shaft is rotatably arranged in the inside of the box body and rotates around the cage. The cleaning rod is fixedly connected to the outside of the cleaning shaft and is in contact with the outside of the cloth bag. Through the technical scheme, the problem that the dust is only cleaned by the pulse spraying mode in the prior art and the dust cleaning effect is limited is solved.

Description

[0001] The present application relates to the technical field of dust removal, in particular, to a completely offline dust cleaning type dust removal equipment. BACKGROUND

[0002] Pulse cloth bag dust collector is divided into online dust cleaning and offline dust cleaning according to dust cleaning form, online dust cleaning structure is because dust cleaning and filtering are carried out at the same time, so that part of dust is re-adsorbed on the surface of the cloth bag after being cleaned out of the surface of the cloth bag and falling into the ash bucket, the suction force of the fan will offset part of the blowing force of the pulse valve, which will significantly affect the dust cleaning effect, and it is not easy to select this form for dust with large dust amount, high dust viscosity, high temperature, light weight and high corrosion, and it is not conducive to maintenance without stopping.

[0003] The structural feature of offline dust cleaning is divided into N box types, the gas outlet of each box type is controlled by a valve to work or not, the dust-containing air uniformly enters each sub-chamber ash bucket under the action of the air inlet guide plate of the dust collector, the large particles of dust directly fall into the ash bucket, and the fine dust is adsorbed on the outer surface of the filter bag, the clean gas penetrates through the filter bag into the upper box body, and is discharged into the atmosphere through the control valve, fan and chimney, as the dust on the filter bag accumulates more and more, when the dust on the surface of the filter bag needs to be cleaned, the pulse valve is opened to stop the wind and spray after the dust cleaning control device automatically closes one box chamber control valve according to the differential pressure or dust cleaning time.

[0004] However, the current offline dust cleaning type dust removal equipment only uses the pulse spraying method to clean the dust on the cloth bag, one box corresponds to one pulse valve, and one pulse valve sprays pulse gas to multiple cloth bags in one box, and the cleaning effect of dust with strong adhesion is limited, and as the height decreases, the distance between the cloth bag and the pulse valve increases, and the spraying force also decreases, and the gas to be cleaned enters the box from bottom to top and penetrates through the cloth bag, and there is more dust in the area below the cloth bag, and the current dust cleaning method needs to be improved to clean the dust at the lower position of the cloth bag. SUMMARY

[0005] The present application provides a completely offline dust cleaning type dust removal equipment to solve the problem of limited dust cleaning effect by only using pulse spraying in the prior art.

[0006] The technical scheme of the present application is as follows:

[0007] A completely offline dust cleaning type dust removal equipment, comprising a box, an ash bucket, a cage and a cloth bag, the box is provided with a plurality of boxes, the ash bucket is communicated with the bottom of the box, the cage is installed in the inside of the box, the cloth bag is arranged outside the cage, and the ash bucket is communicated with an air inlet pipe, further comprising:

[0008] A spraying mechanism is arranged on the box, and the spraying mechanism is used for spraying and cleaning the dust on the cloth bag, the spraying mechanism comprises:

[0009] A gas tank is installed on the box body, and the gas tank is communicated with a conveying pipe;

[0010] A plurality of spray heads are provided, and the spray heads and the cloth bags are one-to-one corresponding. The plurality of spray heads in the same box body are communicated with the conveying pipe through a pulse valve.

[0011] An exhaust assembly is used to exhaust clean air, and the exhaust assembly comprises:

[0012] An exhaust bin is communicated with the top of the upper box body through an exhaust port, and the exhaust bin is communicated with an air outlet pipe.

[0013] An opening and closing piece is used to open and close between the exhaust assembly and the box body, and the opening and closing piece comprises:

[0014] A baffle is arranged on the exhaust bin in a liftable manner, and is used to open and close the exhaust port.

[0015] A mechanical cleaning mechanism is used to clean the outside of the cloth bag, and the mechanical cleaning mechanism comprises:

[0016] A cleaning shaft is rotatably arranged in the inside of the box body, and the cleaning shaft rotates around the cage.

[0017] A cleaning rod is fixedly connected to the outside of the cleaning shaft, and the cleaning rod is in contact with the outside of the cloth bag.

[0018] In order to realize the rotation of the cleaning shaft, the cleaning shaft is drivingly connected with the baffle through a transmission assembly, and the transmission assembly comprises:

[0019] A driving rack is fixedly connected to the bottom end of the baffle.

[0020] A transmission rod is rotatably connected to the inside of the exhaust bin, and the transmission rod is coaxially fixedly connected with a transmission gear, and the transmission gear is engaged with the driving rack.

[0021] A plurality of driving rods are provided, and the driving rods are rotatably connected to the inside of the exhaust bin. Adjacent two driving rods are drivingly connected through a chain wheel and chain, and one of the driving rods is drivingly connected with the transmission rod through the chain wheel and chain.

[0022] A driving bevel gear is fixedly sleeved on the driving rod.

[0023] A driving gear is rotationally connected inside the box body, and a driven bevel gear is coaxially fixedly connected with the driving gear, and the driven bevel gear and the driving bevel gear are engaged;

[0024] A driven gear ring is rotationally connected inside the box body, and the driven gear ring and the cage are coaxially arranged, the driven gear ring and the driving gear are engaged, and the cleaning shaft is rotationally connected to the bottom of the driven gear ring.

[0025] In order to block the air inlet during dust cleaning, the bottom end of the baffle is fixedly connected with an opening and closing plate through a connecting frame, and the opening and closing plate is lifted and lowered with the baffle to open and close the air inlet pipe.

[0026] In order to blow the lower position of the cloth bag, the top of the cage is provided with a telescopic air supply cylinder, and the inside of the cage is provided with a lifting frame which is liftably arranged and connected with the bottom of the telescopic air supply cylinder.

[0027] The working principle and beneficial effects of the present application are as follows:

[0028] 1. In the present application, when it is necessary to clean the cloth bag in the corresponding box body, the baffle on the corresponding box body is lowered to block the exhaust port, the suction of the exhaust pipe to the gas in the box body is blocked, the opening and closing plate is lowered by the baffle to close the air inlet pipe, the air inlet of the air inlet pipe is blocked, the corresponding pulse valve is opened, the pulse gas is blown into the cloth bag through the nozzle, and the cloth bag is cleaned offline.

[0029] 2. In the present application, when the baffle is lifted and lowered, the driving rack is lifted and lowered, the transmission gear and the transmission rod are rotated, a plurality of driving rods are rotated under the action of the chain wheel and chain, the driving gear is rotated under the transmission action of the driving bevel gear and the driven bevel gear, the driven gear ring is rotated around the cage, and the cleaning shaft is rotated around the cloth bag, so that the cleaning rod cleans the outside of the cloth bag.

[0030] 3. In the present application, when the cloth bag is blown and cleaned, the bottom end of the telescopic air supply cylinder is moved downward by the lifting frame, so that the pulse gas flow blown by the nozzle is blown to the lower position of the cloth bag through the telescopic air supply cylinder, the lower dust accumulation position of the cloth bag is cleaned, and the cleaning effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0032] Figure 1 It is a structural schematic view of the first perspective of the whole application;

[0033] Figure 2 It is a structural schematic view of the second perspective of the whole application;

[0034] Figure 3 Structure diagram of the present application in partial section;

[0035] Figure 4 Structure diagram of the present application in partial section;

[0036] Figure 5 Structure diagram of the present application in partial section;

[0037] Figure 6 Structure diagram of the present application in partial section;

[0038] Figure 7 Structure diagram of the present application in partial section;

[0039] Figure 8 Structure diagram of the present application in partial section;

[0040] Figure 9 Structure diagram of the present application in partial section;

[0041] Figure 10 Structure diagram of the present application in partial section;

[0042] Figure 11 Structure diagram of the present application in partial section; Figure 3 Structure diagram of the present application in partial section;

[0043] Figure 12 Structure diagram of the present application in partial section; Figure 4 Structure diagram of the present application in partial section;

[0044] Figure 13 Structure diagram of the present application in partial section; Figure 5 Structure diagram of the present application in partial section;

[0045] Figure 14 Structure diagram of the present application in partial section; Figure 9 Structure diagram of the present application in partial section.

[0046] In the figure:

[0047] 1, box; 2, hopper; 3, cage; 4, cloth bag; 5, flower plate; 6, air inlet pipe; 7, telescopic air supply cylinder; 8, lifting frame; 9, electric cylinder; 10, lifting plate; 11, opening and closing plate;

[0048] 101, gas storage tank; 102, spray head; 103, conveying pipe; 104, blowing pipe; 105, communication pipe;

[0049] 201, exhaust chamber; 202, air outlet pipe;

[0050] 301. Baffle; 302. Cylinder;

[0051] 401. Sweeping shaft; 402. Sweeping bar;

[0052] 501. Drive rack; 502. Transmission rod; 503. Drive rod; 504. Drive bevel gear; 505. Drive gear; 506. Driven gear ring; 507. Transmission gear; 508. Driven bevel gear. Detailed Implementation

[0053] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0054] like Figures 1 to 14 As shown, this embodiment proposes a fully offline dust removal device, including a housing 1, a dust hopper 2, cages 3, and filter bags 4. Multiple housings 1 are provided. The dust hoppers 2 are connected to the bottom of the housing 1. The cages 3 are installed inside the housing 1 via a perforated plate 5. The filter bags 4 are located outside the cages 3. The perforated plate 5 divides the housing 1 into a lower filter chamber and an upper clean air chamber. The filter bags 4 are located inside the filter chamber. The dust hopper 2 is connected to an air inlet pipe 6, which introduces exhaust gas into the housing 1. The filter bags 4 block dust and impurities in the exhaust gas. Clean air enters the clean air chamber from bottom to top and is discharged. The device also includes a blowing mechanism, an exhaust assembly, opening and closing components, and a mechanical cleaning mechanism.

[0055] like Figures 1 to 12 As shown, the jet cleaning mechanism is used to clean the filter bags 4 by jet cleaning. The jet cleaning mechanism includes an air tank 101 and nozzles 102. The air tank 101 is installed on the housing 1 and is connected to a conveying pipe 103. Multiple nozzles 102 are provided, and each nozzle 102 corresponds to a filter bag 4. Multiple nozzles 102 located in the same housing 1 are connected to the conveying pipe 103 through a pulse valve. Multiple nozzles 102 in the same housing 1 are connected to each other through a jet cleaning pipe 104. The jet cleaning pipe 104 is connected to the conveying pipe 103 through a connecting pipe 105. A pulse valve is installed on the connecting pipe 105. When it is necessary to clean the filter bags 4 in the corresponding housing 1, the corresponding pulse valve is opened to send the gas in the air tank 101 into the interior of the jet cleaning pipe 104 in the corresponding housing 1 and blow it into the interior of the filter bags 4 through the nozzles 102 to clean the filter bags 4.

[0056] like Figures 1 to 2As shown, the exhaust assembly is used to discharge clean air. The exhaust assembly includes an exhaust chamber 201, which is connected to the top of the upper housing 1 through an exhaust port. The exhaust chamber 201 is connected to an exhaust pipe 202, which can be connected to an exhaust fan. The exhaust fan generates suction on the air inside the housing 1. The gas filtered and purified by the bag filter 4 enters the exhaust chamber 201 through the exhaust port and is then discharged through the exhaust pipe 202 and the exhaust fan.

[0057] like Figures 1 to 7 As shown, the opening and closing component is used to open and close the exhaust assembly and the housing 1. The opening and closing component includes a baffle 301, which is movably mounted on the exhaust chamber 201 to open and close the exhaust port. A cylinder 302 is installed on the exhaust chamber 201, and the baffle 301 is fixedly connected to the output end of the cylinder 302. The cylinder 302 can drive the baffle 301 to move up and down. The opening and closing plate 11 corresponds to the position of the exhaust port. When it is necessary to clean the filter bag 4 in the corresponding housing 1, the corresponding cylinder 302 is opened to drive the baffle 301 to descend and close the exhaust port, preventing the exhaust fan from accessing the housing 1. The suction generated prevents the cleaned dust from being re-adsorbed onto the outside of the filter bag 4. At the same time, to block the air intake during dust removal, the bottom end of the baffle 301 is fixedly connected to the opening and closing plate 11 via a connecting frame. The opening and closing plate 11 moves up and down with the baffle 301 to open and close the air intake pipe 6. When the baffle 301 descends to close the exhaust port, the opening and closing plate 11 descends with the baffle 301 to close the air intake pipe 6, reducing the continued entry of exhaust gas. This keeps the gas in the housing 1 in a relatively stable state, facilitating the directional blowing of the pulse gas on the filter bag 4, and then allowing the cleaned dust to fall and be discharged through the dust hopper 2.

[0058] like Figures 1 to 14As shown, the mechanical cleaning mechanism is used for cleaning the outside of the cloth bag 4, the mechanical cleaning mechanism comprises a cleaning shaft 401 and a cleaning rod 402, the cleaning shaft 401 is rotatably arranged in the inside of the box body 1, the cleaning shaft 401 rotates around the cage 3, the cleaning rod 402 is fixedly connected to the outside of the cleaning shaft 401, the cleaning rod 402 contacts with the outside of the cloth bag 4, the cleaning shaft 401 is drivingly connected with the baffle 301 through a transmission assembly, the transmission assembly comprises a driving rack 501, a transmission rod 502, a driving rod 503, a driving bevel gear 504, a driving gear 505 and a driven gear ring 506, the driving rack 501 is fixedly connected to the bottom end of the baffle 301, the transmission rod 502 is rotatably connected to the inside of the exhaust bin 201, the transmission rod 502 is coaxially fixedly connected with a transmission gear 507, the transmission gear 507 is engaged with the driving rack 501, the driving rod 503 is provided in plurality, the driving rod 503 is rotatably connected to the inside of the exhaust bin 201, adjacent two driving rods 503 are drivingly connected through a chain wheel and chain transmission, one of the driving rods 503 is drivingly connected with the transmission rod 502 through the chain wheel and chain transmission, the driving bevel gear 504 is fixedly sleeved on the driving rod 503, the driving gear 505 is rotatably connected to the inside of the box body 1, the driving gear 505 is coaxially fixedly connected with a driven bevel gear 508, the driven bevel gear 508 is engaged with the driving bevel gear 504, the driven gear ring 506 is rotatably connected to the inside of the box body 1, the driven gear ring 506 is coaxially arranged with the cage 3, the driven gear ring 506 is engaged with the driving gear 505, the cleaning shaft 401 is rotatably connected to the bottom of the driven gear ring 506, when the baffle 301 lifts to open and close the exhaust port, the driving rack 501 is lifted to open and close the exhaust port, the driving rack 501 drives the transmission gear 507 and the transmission rod 502 to rotate, under the action of the chain wheel and chain transmission, the driving rod 503 drivingly connected with the transmission rod 502 is driven to rotate, at the same time, under the transmission action of the chain wheel and chain transmission, the plurality of driving rods 503 are synchronously driven to rotate, the driving rod 503 drives the driving bevel gear 504 to rotate, under the transmission action of the driving bevel gear 504 and the driven bevel gear 508, the driving gear 505 is driven to rotate, thereby driving the driven gear ring 506 to rotate around the cage 3, driving the cleaning shaft 401 to rotate around the cloth bag 4, so that the cleaning rod 402 cleans the outside of the cloth bag 4, when the cleaning shaft 401 drives the cleaning rod 402 to revolve around the cloth bag 4, the cleaning rod 402 is contacted with the cloth bag 4 and generates a reverse resistance, thereby fluctuating the cleaning rod 402 to rotate, the cleaning shaft 401 and the cleaning rod 402 revolve around the cloth bag 4 while rotating, reducing the accumulation of dust between the cleaning rod 402 and the cloth bag 4, and ensuring the dust cleaning effect of the cloth bag 4.

[0059] As Figures 1 to 13As shown, in order to blow the lower position of the cloth bag 4, the top of the cage 3 is provided with an extendable air supply cylinder 7, the inside of the cage 3 is provided with a lifting frame 8 which can be lifted, the lifting frame 8 is connected to the bottom of the extendable air supply cylinder 7, an electric cylinder 9 is installed on the exhaust chamber, the output end of the electric cylinder 9 is fixedly connected with a lifting plate 10, the lifting frame 8 is fixedly connected with the lifting plate 10 through a connecting rod, the lifting plate 10, the connecting rod and the lifting frame 8 can be lifted by the electric cylinder 9, the top end of the extendable air supply cylinder 7 is located at the top end of the cage 3 close to the gas outlet position of the nozzle 102, in the normal dust removal process, the lifting frame 8 is in the highest position so that the extendable air supply cylinder 7 is in the retracted state, avoiding hindering the dust removal of the cloth bag 4, when it is needed to spray and blow the cloth bag 4, the electric cylinder 9 drives the lifting frame 8 to descend, thereby driving the bottom end of the extendable air supply cylinder 7 to descend so that it is elongated, the air outlet position of the extendable air supply cylinder 7 is close to the bottom of the cloth bag 4, after the pulse valve is opened, the gas sprayed by the nozzle 102 is conveniently blown to the lower position of the cloth bag 4, the area of the cloth bag 4 where the dust is accumulated more is sprayed and blown, thereby improving the dust removal effect of the cloth bag 4.

[0060] The working principle or use process of the completely offline dust removal type dust removal equipment is as follows:

[0061] The treated waste gas enters the box 1 through the air inlet pipe 6 and enters the exhaust chamber 201 under the action of the exhaust fan and passes through the cloth bag 4 and is discharged through the air outlet pipe 202, the cloth bag 4 blocks the impurities and dust in the waste gas to stay in the inside of the box 1, and the clean gas is discharged through the exhaust chamber 201 and the air outlet pipe 202;

[0062] Part of the dust is adsorbed on the surface of the cloth bag 4, when it is needed to clean the cloth bag 4, the corresponding cylinder 302 on the box 1 drives the baffle 301 to descend to close the exhaust port, at the same time, the baffle 301 drives the opening and closing plate 11 to descend to close the air inlet pipe 6, so that the box 1 to be cleaned is in a relatively stable gas environment;

[0063] The baffle 301 drives the driving gear 505 to rotate in the descending process, thereby driving the driven gear ring 506 and the cleaning shaft 401 to rotate around the cloth bag 4, and driving the cleaning rod 402 to clean the outside of the cloth bag 4;

[0064] The electric cylinder 9 drives the lifting plate 10 and the lifting frame 8 to descend, so that the extendable air supply cylinder is elongated, the pulse valve in the corresponding box 1 is opened, the gas in the gas storage tank 101 is sprayed and blown to the inside of the cloth bag 4 through the nozzle 102, under the action of the extendable air supply cylinder, the gas can be sent to the lower position of the cloth bag 4, and the cloth bag 4 is blown;

[0065] Then the electric cylinder 9 drives the lifting frame 8 to rise to contract the telescopic air cylinder, the cylinder 302 drives the baffle 301 and the opening and closing plate 11 to rise to open the exhaust port and the air inlet pipe 6, the box 1 and the cloth bag 4 continue to carry out the dust removal work, the baffle 301 still drives the driven gear ring 506 to rotate in the rising process, so as to drive the cleaning shaft 401 and the cleaning rod 402 to clean the cloth bag 4 again, improve the dust removal effect of the cloth bag 4.

[0066] The above only is the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully offline dust removal device, comprising a housing (1), a dust hopper (2), a cage (3), and a filter bag (4), wherein multiple housings (1) are provided, the bottom of the dust hopper (2) is connected to the housing (1), the cage (3) is installed inside the housing (1), the filter bag (4) is disposed outside the cage (3), and the dust hopper (2) is connected to an air inlet pipe (6), characterized in that, Also includes: A jet-blowing mechanism is used to clean the cloth bag (4) by jet-blowing. An exhaust assembly for discharging clean air, the exhaust assembly comprising: An exhaust chamber (201) is connected to the top of the box (1) through an exhaust port, and the exhaust chamber (201) is connected to an exhaust pipe (202). An opening and closing element, used for opening and closing between the exhaust assembly and the housing (1), the opening and closing element comprising: A baffle (301) is elliptical and scissionably mounted on the exhaust chamber (201) for opening and closing the exhaust port; A mechanical cleaning mechanism, used to clean the exterior of the cloth bag (4), the mechanical cleaning mechanism comprising: A cleaning shaft (401) is rotatably disposed inside the housing (1) and rotates around the cage (3); A sweeping rod (402) is fixedly connected to the outside of the sweeping shaft (401), and the sweeping rod (402) is in contact with the outside of the cloth bag (4); The cleaning shaft (401) is connected to the baffle (301) via a transmission assembly, the transmission assembly comprising: A drive rack (501) is fixedly connected to the bottom end of the baffle (301); A transmission rod (502) is rotatably connected inside the exhaust chamber (201). A transmission gear (507) is coaxially fixedly connected to the transmission rod (502). The transmission gear (507) meshes with the drive rack (501). A drive rod (503) is provided in multiple ways. The drive rod (503) is rotatably connected to the interior of the exhaust chamber (201). Two adjacent drive rods (503) are connected by a sprocket and chain drive. One of the drive rods (503) is connected to the transmission rod (502) by a sprocket and chain drive. A drive bevel gear (504) is fixedly mounted on the drive rod (503); A drive gear (505) is rotatably connected inside the housing (1). A driven bevel gear (508) is coaxially fixedly connected to the drive gear (505). The driven bevel gear (508) meshes with the drive bevel gear (504). Driven gear ring (506) is rotatably connected inside the housing (1). The driven gear ring (506) and the cage bone (3) are coaxially arranged. The driven gear ring (506) meshes with the drive gear (505). The cleaning shaft (401) is rotatably connected to the bottom of the driven gear ring (506).

2. The fully offline dust removal equipment according to claim 1, characterized in that, The blowing mechanism includes: Gas storage tank (101), the gas storage tank (101) is installed on the box (1), and the gas storage tank (101) is connected to a delivery pipe (103). The nozzle (102) is provided in multiple ways. The nozzle (102) and the cloth bag (4) correspond one-to-one. The multiple nozzles (102) located in the same box (1) are connected to the delivery pipe (103) through a pulse valve.

3. The fully offline dust removal equipment according to claim 2, characterized in that, The bottom end of the baffle (301) is fixedly connected to an opening and closing plate (11) via a connecting frame. The opening and closing plate (11) moves up and down with the baffle (301) to open and close the air intake pipe (6).

4. The fully offline dust removal equipment according to claim 3, characterized in that, The top of the cage (3) is equipped with a telescopic air supply tube (7), and the inside of the cage (3) is equipped with a lifting frame (8) that can be raised and lowered. The lifting frame (8) is connected to the bottom of the telescopic air supply tube (7).

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